CP, T and CPT versus temporal asymmetries for entangled states of the Bd-system

Details CP, T and CPT versus temporal asymmetries for entangled states of the Bd-system CP, T and CPT versus temporal asymmetries for entangled states of the Bd-system

1999-08-13

arxiv.org/abs/hep-ph/9908353v1

Phys.Lett. B464 (1999) 117-122

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, no figures

Scientific paper

10.1016/S0370-2693(99)01043-6

The observables used in the K-system to characterize T and CPT violation are no longer useful for the Bd-system, since the width difference between the physical states is vanishingly small. We show that only Im(epsilon) and Re(delta) can survive if Delta Gamma=0, and build alternative CP-odd, CPT-odd, T-odd and temporal asymmetries for the (B_CP -> B0, B0bar) transitions. These quantities enable us to test T and CPT invariances of the effective Hamiltonian for the B-system. The method needs the CP eigenstates B_CP, which can be tagged unambiguously to order lambda^3 from the entangled states of a B-factory.

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